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(2015 OS78)
Classification: Apollo [NEO]          SPK-ID: 3725151
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7550368816806716 0.00023118  
a 2.264918995647927 0.001722 au
q .5548216199145974 0.00010176 au
i 7.464275426055592 0.0012569 deg
node 10.47099625803853 0.005402 deg
peri 52.57236449372599 0.005662 deg
M 129.6325941166047 0.56035 deg
tp 2458552.178930876587
(2019-Mar-09.67893088)
1.4266 TDB
period 1245.023182512672
3.41
1.4199
0.003887
d
yr
n .2891512423675982 0.00032977 deg/d
Q 3.975016371381256 0.0030222 au
  Orbit Determination Parameters
   # obs. used (total)      32  
   data-arc span      30 days  
   first obs. used      2015-07-26  
   last obs. used      2015-08-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .44348  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:32:39  

Additional Information
 Earth MOID = .0756413 au 
 Jupiter MOID = 1.48912 au 
 T_jup = 3.155 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 20.9   n/a MPO344241  

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2015-Aug-26 09:30 < 00:01 Earth 0.0839541331737898 0.0838770683742139 0.0840311979554841 22.1965817244517 22.1951518491482 2457260.895701855 0.113144904232307 3842.4238454745 20.3221571751376 -0.0183288611545814 2728.06479487843 T 8 CATAB v2.0e-lin.ifort 2017-Nov-30 06:28:01 2018-Dec-11 16:41
2015-Sep-25 11:57 01:11 Venus 0.136159919429213 0.136158757859487 0.136161113740262 16.4828714646463 16.4819038564567 2457290.997792305 70.5061560498586 6705.96090307948 50.9575776754134 89.7639206060312 227831.670686313 T 8 CATAB v2.0e-lin.ifort 2017-Nov-30 06:28:01 2018-Dec-11 16:41
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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